Injector razor arranged for urging a blade against the cap while it is being washed



April 13, 1965 G. STAHL 3,177,581 INJECTOR RAZOR ARRANGED FOR URGING A BLADE AGAINST THE CAP WHILE IT IS BEING WASHED Original Filed July 28. 1961 3 Sheets-Sheet 1 FIG. 2

INVENT OR. I5 '2 GERALD STAHL BY lo ATTORNEY Apnl 13, 1965 G. STAHL 3,177,581

INJECTOR. RAZOR ARRANGED FOR URGING A BLADE AGAINST A THE CAP WHILE IT IS BEING WASHED Original Filed July 28. 1961 5 SheetsfSheet 2 April 13, 1.965

G. STAHL 3,177,581 INJECTOR RAZOR ARRANGED FOR URGING A BLADE AGAINST n i THE- CAP WHILE IT IS BEING WASI-IED Orlglnal Flled July 28. 1961 3 Sheets-Sheet 3 INVENTOR GERALD STAHL NM/@Mw ATTOR N EY United States Patent O 3,177,581 INJECTDR RAZR ARRANGED FR URGING A BLADE AGAINST THE CAP WHILE IT IS BEING WASHED Gerald Stahl, Rye, N.Y., assigner to Philip Morris Incorporated, New York, N.Y., a corporation of Virginia Original application July 28, 1961, Ser. No. 127,654, now Patent No. 3,095,645, dated `Iuly 2, 1963. Divided and this application Apr. 1t), 1963, Ser. No. 272,000 4 Claims. (Cl. 30-63) This application is a division of my copending application Serial No. 127,654, tiled July 28, 1961 which has matured into Patent No. 3,095,645 granted July 2, 1963.

This invention relates to safety razors, and more especially to injector razors, and includes among its objects the provision of simple and convenient means for holding a blade against the cap of an injector razor while its bladeseat is moved away from it to facilitate the washing of the blade. Pursuant to the invention, means are provided for resiliently urging a blade upwardly against the undersurface of the cap so that, upon the movement of the seat away from the blade, the cutting edge of the blade may be easily and thoroughly washed without any blade movement relative to the razor or any necessity of reclamping the blade after washing. In various of its more specific aspects, moreover, the invention further contemplates the provision a blade esat which provides a guard and is movable to adjust the position of the guard with respect to the cutting edge of the razor, and is also readily movable away from the blade to facilitate the washing thereof, the provision of a cap with blade stops cooperating with the urging means in the retention of the blade, the provision of resilient means operative against a dull blade edge to move the cutting edge of the blade against stops on the cap, and other cooperative combinations of elements.

The invention accordingly comprises the features `of construction, combinations of elements, and arrangement of parts, which will be exemplified in the constructions hereinafter set forth and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

FIGURE 1 is a perspective View showing one form of razor and an injector magazine usable therewith;

FIG. 2 is a side view of the razor;

FIG. 3 lis a section on line 3-3 of FIG. 2;

FIG. 4 is a section on the line 4 4 of FIG. 3;

FIG. 5 is a view similar to FIG. 2 showing the razor in a position of maximum adjustment;

FIG. 6 is a view similar -to FIG. 2 showing the razor with an injector key inserted;

FIG. 7 is a section on the line 7--7 of FIG. 6 illustrating the blade-inserting operation;

FIG. 8 is a vertical sectional view of a form of construction partcularly embodying the invention;

FIG. 9 is a similar view showing the razor with an injector key inserted;

FIG. l0 is a section on the line 10--10 of FIG. 9;

FIG. 11 is a section on the line 11-11 of FIG. 10;

FIG. 12 is a View similar to FIG. 8 showing the razor in position for easy washing; and

FIG. 13 is a perspective View showing a further moditication'.

In the form of construction shown in FIGS. l-7, there is provided an injector razor having a handle which may be formed of suitable material as by being molded from plastic, and in which are set, in the present instance, the lower end of a relatively rigid cap-supporting member ice 12 carrying a forwardly-extending cap 14, and the lower end of a seat-supporting member 15 having a strong rearward urgeand carrying a blade seat 16 between which and the cap a single-edge ejector blade 18 is adapted to be mounted, and which, as exemplified, carries a soap bar or guard 19. Forward movement of the blade is limited by stops 2li extending from the ends of the cap and against which the end portions of the cutting edge 22 of the blade are normally pressed by a spring 24 having a forward resilient urge which is less than the rearward resilient urge of the member 15, and which bears against the dull edge of the blade and the lower end of which, in the present instance, is set in the handle 19 `between the members 12 `and 15. By the provision of a spring which urges the blade against stops carried by the cap, the blade seat is left free for easy and simple adjusting action laterally of a Iblade which is nevertheless rmly held in place during the adjusting action. The shaving angle between the guard and the cutting edge of a blade held against the stops 20 can thus be readily and effectively adjusted by the movement of the blade seat laterally of the blade.

While a wide variety of forms of adjusting means may be employed, there is particularly exemplified an adjusting means in the form of a screw 30 carrying a knob 31 and rotatably mounted in a threaded opening 32 in the member 12, extending freely thru an opening 33 in the spring 24, and bearing against the rear surface of the member 15 to urge it forwardly against its resilient urge.

In order to limit the rearward movement of the seat 16 to a position in which the member 15 will, when a standard injector blade as exemplied at 18 is employed, be sufficiently forward of the spring 24 to permit the insertion between the spring 24 and the member 15 of the key 36 of an injector magazine 37, and to provide limits for the adjusting action of the screw 30, the seat 16 is provided at its ends with recesses 40 and 41 adapted to receive the lower ends of the blade stops 20 and each provided with a forward shoulder 42 to limit the rearward movement of the seat and with a rearward shoulder 43 to limit the forward movement of the seat. The member 12 carries `a liap 44 to assure against the insertion of the key rearwardly of the spring 24, and a lug 45 serving as a guide for the bottom edge of the key.

The member 15 is formed with the usual groove 46 for guiding the hump 47 of the key 36 as it moves into place, and the key is formed with the usual protuberance 48. As will be seen from FIGS. 6 and 7, respectively, the key moves the spring 24 rearwardly enough to free a used blade 18a for ejection ahead of a new blade 1817 which latter will be injected enough the rear of its eventual position so that its cutting edge will not be marred by contact with the rear one of the stops 20.

The blade seat is provided with the usual opening 50 rearwardly of the guard 19, and the cap is cut back at 52 rearwardly of the cutting edge 22 of the blade.

In the form of construction shown in FIGS. 8-12 and embodying the present invention, the parts are generally similar to those shown in FIGS. 17, and, where unchanged, are `designated by similar reference numerals, and, where changed, by such numerals with the addition of the subscript a. The seat 16a is carried on a member 15a which, in the present instance, has a generally vertical sliding movement to permit the seat to be lowered away from the cap and from the blade to facilitate the Washing of the razor. The lower portion of the member 15a extends slidably part way downwardly into the handle 10a of the razor. The member 15a comprises a narrowed portion 53 carrying a somewhat wider lower portion 54 which is slidable downwardly n a slot 56 in the handle 10a. The portion 54 carries a forwardly-extending struction anddifferent member 58 riding a slot 59, (which is'wider than Vvthe y' forwardA edge thereof `to leaveezxposedk the upper portion portion 53) on which there is' carriedr a widened thumbsV Y piece 60, whereby the member 15aand the seat. 16a, Y

of the cutting edge of a blade contacting said stops, resi1` ient' means adapted torkengage thedull edgefof a single- Y edge blade to pressend portionsof itscutting edge against The member rk15.11l isiformed witha'depressionv 62 for., v f receiving the forward Vend of the screw V30y when the seat f.

is in its uppermost position toassure againstthe seat falling from that position.

relied on to hold the blade in position for washing,there is provided, in the present instance, a light spring 64se- H a blade between 'itself and the cap for urging a blade up-x Y A i lo While theY action ofthe spring such as 24 might be curedrto the spring 24 at 65 and bearing Vagainst thelowerj surface of the blade' 18. to assure that it remains in place during the washing operation, the seatbeingformedwith f a slot 66 to receive the, spring 64 when the seat 16a is in place under the cap.4 In the form ofA construction d parts are generally similar to those shown in FIGS. 8-12 numerals, and, where changed, by similar yreference numerals with the additionorsubstitution of the subscript b. In this instance,

and, where unchanged, are designated by similar reference shown in '13', V'the Y f thapeffs 54b,"56b, Ssbfandr59b @Xn tend further down the Vhandle 10bthan the corresponding parts in FIGS. 8-12, andthe Vthumbpiece 60h has` a 1 portion 70 y A length orfv the handle, which notonly' haska pleasing ap'-V 7 0 when desired. Since certain changes embodimentsof the invention could be made without dep tion; or shown in theaccompanymg drawingsv shallbe invrextending downwardly substantially the'fu'll" arting from the scope thereof, ,it is intended thatqall matterjcontained in the above descrip- Y v 30 may be made in the. above'con-` tion wherein-said. cuttmgredge is exposed and a spring biased upwardly toward. the cap-,and adapted to admit wardly'against the underside of said cap to prevent its'falling when theseatis moved tothe downward position. Y

3. Anfinjector'razorv comprising a handle,` :arcap carl f, ried by the handle, blade stops carried by said-cappresilient means adapted co-.engage the dull edge' of. afsin'gleedge blade'to press endY portions of its cutting edge against, :saidl stops, meansrattached to said resilentmeansfor urg,

`ing said blade upwardly, against Y.the underside of said cap, tay blade seat,- YaV supper-5ty member for` said -blade seat, a guard'ixed to the seat, adjustingfmeans for moving said support `memberand said seat. to vary, the, angle between 4the guard and ithe cutting edge of a blade soheld to vary the cutting, angle loir-he blade, means to mount said seatA support member on `'the handle frmmovementiin` a generally downward direction tocarry rsaid guard away from the-cutting edge ofthe lblade to facilitatewashing of the blade while the-.bla'defisheld against the `underside of the cap by theupwardly-urging means. Y

4,1Anfinjectorrazor comprising` ahan'dle, yagcap attached to the handle; lateral blade aliningl andretaining rn'eanscarriedby the'cap; a` blade seat, asupp'ort'mem- Y ber'fontheseatmonted onthehandle to carry the seat i adjacentrto. the underside ofy the cap for the., insertion of ablade between ythe cap'and the-seat, meansto adjust vthe l position of saidblade rseat'to-r remove it fromits'position 35' terpreted as illustrativeA andnot in 1a limiting sense. Y

The invention claimed is:

l.V An-injector razor comprising a cap having an under .surface against which` a blade lis adapted torlie with at least the major portion offvits cutting edge exposed, means for holding the blade against said` surface while-permitting longitudinal sliding movement thereof whenl pressure -j is applied to an endthereof, a blade seat,1a supp'crtmemvV i Y* 'i ber for said blade seat, av guard iiXed to saidseat, means toI move said support member yand said seat ina direction;

generally'parall'el to said surface to adjust the angle be- Ytweenthe guardand: thetedgekof a'blade so held tofvary'r the cutting angle of the blade, and other means to mountV said support member for movementV in a direction gen.-

the blade whilethe blade isy so held.

2. AY razor comprising ablade seat, Va cap, b-lade'stopsv Yerally` perpendicularly to Ysaid surface to carry said. guard i750'.

away fromthe edge of a blade to facilitate washing of'V 'side' of the cap.

adjacentto the underside of the cap, and resilient means permanently adjacent the underside of. the cap for theine- Y sertionof a blade between itfand; the cap to contact'and urge the` blade upwardly'for retentionagainst the underwiLLIA-M FELDMAN; Primary Examinar. 

1. AN INJECTOR RAZOR COMPRISING A CAP HAVING AN UNDER SURFACE AGAINST WHICH A BLADE IS ADAPTED TO LIE WITH AT LEAST THE MAJOR PORTION OF ITS CUTTING EDGE EXPOSED, MEANS FOR HOLDING THE BLADE AGAINST SAID SURFACE WHILE PERMITTING LONGITUDINAL SLIDING MOVEMENT THEREOF WHEN PRESSURE IS APPLIED TO AN END THEREOF, A BLADE SEAT, A SUPPORT MEMBER FOR SAID BLADE SEAT, A GUARD FIXED TO SAID SEAT, MEANS TO MOVE SAID SUPPORT MEMBER AND SAID SEAT IN A DIRECTION GENERALLY PARALLEL TO SAID SURFACE TO ADJUST THE ANGLE BETWEEN THE GUARD AND THE EDGE OF A BLADE SO HELD TO VARY THE CUTTING ANGLE OF THE BLADE, AND OTHER MEANS TO MOUNT SAID SUPPORT MEMBER FOR MOVEMENT IN A DIRECTION GENERALLY PERPENDICULARLY TO SAID SURFACE TO CARRY SAID GUARD AWAY FROM THE EDGE OF A BLADE TO FACILITATE WASHING OF THE BLADE WHILE THE BLADE IS SO HELD. 